@inproceedings{SIGMOD-1987-KemperLW,
	author        = "Alfons Kemper and Peter C. Lockemann and Mechtild Wallrath",
	booktitle     = "{Proceedings of the 17th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD87/P299.PDF",
	doi           = "10.1145/38713.38747",
	pages         = "299--310",
	title         = "{An Object-Oriented Database System for Engineering Applications}",
	year          = 1987,
}